<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form method="post" action="#">
    <input type="text" id="userName" name="userName"/>
    <input type="password" id="userPassword" name="userPassword"/>
    <input type="submit" value="登录"/>
</form>
</body>
</html>